The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Jul. 06, 2009
Applicants:
Jean-marc Lalancette, Sherbrooke, CA;
David Lemieux, Thetford Mines, CA;
Bertrand Dubreuil, Trois-Rivieres, CA;
Inventors:
Jean-Marc Lalancette, Sherbrooke, CA;
David Lemieux, Thetford Mines, CA;
Bertrand Dubreuil, Trois-Rivieres, CA;
Assignee:
Nichromet Extraction Inc., , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D 5/12 (2006.01); C05D 1/00 (2006.01); C05D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing potassium magnesium sulfate, comprising reacting sulfuric acid with potassium chloride and magnesium chloride at a temperature in a range comprised between about 100 and about 160° C., thereby producing potassium magnesium sulfate and hydrochloric acid, the sulfuric acid being reacted with potassium chloride and magnesium chloride simultaneously or sequentially.